function formatNumber(n) {
    const str = n.toString()
    return str[1] ? str : `0${str}`
}

export function formatTime(date) {
    const year = date.getFullYear()
    const month = date.getMonth() + 1
    const day = date.getDate()

    const hour = date.getHours()
    const minute = date.getMinutes()
    const second = date.getSeconds()

    const t1 = [year, month, day].map(formatNumber).join('/')
    const t2 = [hour, minute, second].map(formatNumber).join(':')

    return `${t1} ${t2}`
}
